CVE-2023-5408: Red Hat Openshift Container Platform

High severity, CVSS 7.2. EPSS: 1.5% chance of exploitation in the next 30 days.

A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.

Affected products

• Red Hat Openshift Container Platform: version 4.11 only; version 4.12 only; version 4.13 only; version 4.14 only

Published 2023-11-02. Last modified 2026-06-17.